<!doctype html>
<html lang="en">

	<head>
		<meta charset="UTF-8" />
		<title>淘抢购</title>
		<link rel="stylesheet" href="css/style.css" />
	</head>
	<div class="btn">
		<span id="btn">换一换</span>
	</div>
	<div class="box">
		
	</div>

	<body>
		<script src="js/script.js"></script>
	</body>

</html>